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Western corn rootworm. The Western corn rootworm, Diabrotica virgifera virgifera, is one of the most devastating corn rootworm species in North America, especially in the midwestern corn -growing areas such as Iowa. A related species, the Northern corn rootworm, D. barberi, co-inhabits in much of the range and is fairly similar in biology.
Diabrotica virgifera zeae Krysan & Smith, 1987. Diabrotica virgifera is a species of beetle in the family Chrysomelidae. It is an agricultural pest species that attacks maize. [1] It includes two subspecies, Diabrotica virgifera virgifera (the western corn rootworm) and Diabrotica virgifera zeae (the Mexican corn rootworm). [2]
Diabrotica undecimpunctata undecimpunctata – western spotted cucumber beetle [6] In the adult form, it eats leaves of many crops, including squash, cucumbers, soybeans, cotton, beans, and corn. Adult beetles lay eggs in the soil near a cucurbit plant. In a lifetime, females can lay between 150-400 eggs. However, there have been cases in which ...
Spotted cucumber beetle, northern corn rootworm beetle, and western corn rootworm beetle Western corn rootworm. Cucumber beetle is a common name given to members of two genera of beetles, Diabrotica and Acalymma, both in the family Chrysomelidae. [1] The adults can be found on cucurbits such as cucumbers and a variety of other plants.
Subtribe: Diabroticina. Genus: Diabrotica. Chevrolat in Dejean, 1836 [1] Diabrotica is a large, widespread genus of beetles in the family Chrysomelidae. Members of this genus include several destructive agricultural pest species, sometimes referred to as cucumber beetles or corn rootworms.
Diabrotica virgifera virgifera, western corn rootworm, migrated from North America to Europe. In both continents, western corn rootworm has had significant impacts on corn production and therefore economic costs. Phenological changes and warming of air temperature have allowed this pests' upper boundary to expand further northward.
Candy corn has caused division since its invention in the 1800s. Some complain about its unappealing waxy texture, others about its lack of flavor. Candy corn was invented in Philadelphia by ...
During 2009 and 2010, some Iowa fields showed severe injury to corn producing Bt toxin Cry3Bb1 by western corn rootworm. During 2011, mCry3A corn also displayed insect damage, including cross-resistance between these toxins. Resistance persisted and spread in Iowa. Bt corn that targets western corn rootworm does not produce a high dose of Bt ...